Look out, Tesla Motors. Carmaker Detroit Electric is just coming up on your left. Company claims its SP:01, which is due to go on sale in 2015, will be world’s fastest production electric sports car. The motor is designed to propel the car forward at the 155 mph and do 0 to 60 mph in 3.7 seconds. In recent times, it unveiled the final design for its exterior, including a big rear wing and an underbody diffuser to reduce lift at those high speeds.